〈a, b | aaa=ab, bbab=aa〉

Properties

• Infinite non-commutative monoid

Completion parameters

• Reduction order: left-to-right a/b

Complete rewriting system

1. a⁷ ⇒ a²
2. ab ⇒ a³
3. b²a² ⇒ a⁶

Right Cayley graph (truncated)

Left Cayley graph (truncated)